:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #6d6c67;
  --line: #deddd7;
  --accent: #3657c9;
  --accent-soft: #e4e9fb;
  --bar: #c9d3f5;
  --bar-on: #3657c9;
  --tick: #c2410c;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151514;
    --surface: #1f1f1d;
    --text: #ecebe6;
    --muted: #a19f98;
    --line: #363531;
    --accent: #8ba4ff;
    --accent-soft: #263055;
    --bar: #2d3656;
    --bar-on: #8ba4ff;
    --tick: #fb923c;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

/* `hidden` must win over the display rules below. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 16px 2rem;
}

h1 {
  margin: 0 0 0.3rem;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}

.lede {
  margin: 0 0 1rem;
  color: var(--muted);
  max-width: 60ch;
}

.lede strong {
  color: var(--text);
}

.model {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

select {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
}

.work {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.25rem;
  margin-top: 1.25rem;
  align-items: start;
}

@media (max-width: 760px) {
  .work {
    grid-template-columns: 1fr;
  }
}

.drop {
  position: relative;
  min-height: 320px;
  border: 2px dashed var(--line);
  border-radius: 12px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s, background 0.15s;
}

.drop:hover,
.drop:focus-visible,
.drop.over {
  border-color: var(--accent);
  background: var(--accent-soft);
  outline: none;
}

.drop img {
  max-width: 100%;
  max-height: 70vh;
  display: block;
}

.hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  color: var(--muted);
  text-align: center;
  padding: 1rem;
}

.hint strong {
  color: var(--text);
  font-size: 1.05rem;
}

/* With an image shown: a slim bar on top that invites the next one, the image below it. */
.drop.has-image {
  justify-content: flex-start;
  min-height: 0;
}

.drop.has-image .hint {
  flex-direction: row;
  align-self: stretch;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.drop.has-image .hint strong {
  font-size: 0.85rem;
}

.drop.has-image img {
  padding: 0.75rem;
}

.results {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
}

.status {
  margin: 0 0 0.6rem;
  color: var(--muted);
}

.chips {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chips li {
  background: var(--accent);
  color: var(--surface);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.chips li.none {
  background: var(--accent-soft);
  color: var(--muted);
  font-weight: 400;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 0.28rem 0.4rem;
  border-bottom: 1px solid var(--line);
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.8rem;
}

.num {
  text-align: right;
  width: 3.5rem;
}

.muted {
  color: var(--muted);
}

tr.on td:first-child {
  font-weight: 600;
}

.track {
  position: relative;
  height: 10px;
  border-radius: 5px;
  background: var(--line);
  min-width: 120px;
}

.fill {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: 5px;
  background: var(--bar);
}

tr.on .fill {
  background: var(--bar-on);
}

.tick {
  position: absolute;
  top: -3px;
  bottom: -3px;
  width: 2px;
  background: var(--tick);
}

footer {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.82rem;
}

a {
  color: var(--accent);
}